When electromagnetic radiation is arranged to wavelength and frequency, it forms the
a. electromagnetic spectrum.
b. multiple-spectrum vividness.
c. ecliptic plane.
d. multiple-vivid spectrum. ive got no idea what it could be lol

Before I hand you the answer, I have to tell you that if I were in high school
and had no idea regarding the answer to this question, I wouldn't want other
people to know it, and I certainly wouldn't be laughing out loud.

When the different kinds of electromagnetic radiation ... like radio, light,
X-rays, etcare arranged in order of their wavelengths or frequencies,
the whole spread is called the electromagnetic spectrum.